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B4C
09-11-2018, 09:48 AM
So my motor is a mix of factory parts, ls2 rods and pistons, lq4 crank in an lq9 block. Does all this need to be re-balanced or should it be good since its all factory stuff?
wretched73
09-11-2018, 10:38 AM
Has this already been put together and run? Or is this a new build?

If it is a new build, its cheap insurance to have all the parts looked at by the machine shop and re-balanced as needed.
B4C
09-11-2018, 10:57 AM
New build. Used parts obviously. Block was hot tanked, checked, honed, and assembled. Guy I bought it off of sold his car then sold the motor fresh from the machine shop.
WildBillyT
09-11-2018, 11:04 AM
If the rotating assembly is made up of used parts from different engines I would say you absolutely have to get it checked/modified.
B4C
09-11-2018, 12:11 PM
Hum, ok. That's what I was worried about. The guy never mentioned having it balanced when I bought it. I'll have it checked out.
Blackbirdws6
09-11-2018, 12:28 PM
I'd have it balanced.
BonzoHansen
09-11-2018, 12:56 PM
Don't cheap our, do it!
sweetbmxrider
09-11-2018, 06:46 PM
Definitely needs to be balanced. You didn't mention internal or external either but the mix up needs to be balanced together. A factory rotating assembly staying together is different.
B4C
09-11-2018, 06:52 PM
Definitely needs to be balanced. You didn't mention internal or external either but the mix up needs to be balanced together. A factory rotating assembly staying together is different.

I just assumed all ls were internal. So whatever a stock lq4 crank and ls2 rods require balance wise.
BonzoHansen
09-11-2018, 06:53 PM
your engine guy will know all the questions & answers.
unstable bob gable
09-11-2018, 07:50 PM
How many cubic inches will this engine be?
B4C
09-11-2018, 08:08 PM
364, stock 6.0l size.
unstable bob gable
09-11-2018, 08:08 PM
364, stock 6.0l size.

Cool.
DirtyBird
09-11-2018, 08:43 PM
Def balance
B4C
09-12-2018, 02:55 PM
Getting dropped off next time I visit my parents in Jersey since the machine shop I want to use is only a town over from them. After talking to them on the phone it definitely needs to get balanced lol.
Blackbirdws6
09-12-2018, 04:15 PM
Getting dropped off next time I visit my parents in Jersey since the machine shop I want to use is only a town over from them. After talking to them on the phone it definitely needs to get balanced lol.

You doubted all of our knowledge?!?!?
B4C
09-12-2018, 04:57 PM
You doubted all of our knowledge?!?!?

No, but I doubt his knowledge less lol.